102  
FNUS74 KMOB 201223  
FWSMOB  
 
SPOT FORECAST FOR EGLIN B70...EGLIN AFB  
NATIONAL WEATHER SERVICE MOBILE AL  
623 AM CST SUN JAN 20 2019  
 
FORECAST IS BASED ON IGNITION TIME OF 0900 CST ON JANUARY 20.  
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER  
SERVICE.  
   
DISCUSSION
 
 
COLDER AND DRIER CONDITIONS RETURN TODAY THROUGH MONDAY AS HIGH  
PRESSURE BUILDS INTO OUR REGION. GUSTY NORTHWEST WINDS WILL  
PERSIST THROUGH THIS MORNING BEFORE GRADUALLY TAPERING OFF INTO  
THIS AFTERNOON. DISPERSIONS WILL BE GOOD TODAY AND FAIR ON  
MONDAY. LOWER HUMIDITY CAN BE EXPECTED TODAY AND MONDAY, WITH THE  
LOWEST HUMIDITY VALUES AROUND 30 PERCENT OCCURRING MONDAY  
AFTERNOON.  
 
FOG POTENTIAL AND OTHER REMARKS...FOG IS NOT EXPECTED.  
   
REST OF TODAY
 
 
SKY/WEATHER.........CLOUDY (90-100 PERCENT) EARLY IN THE MORNING,  
DECREASING CLOUDS LATE THIS MORNING, THEN BECOMING  
SUNNY (0-10 PERCENT) THIS AFTERNOON.  
CHANCE OF PCPN......0 PERCENT.  
LAL.................NO TSTMS.  
MAX TEMPERATURE.....AROUND 49.  
MIN HUMIDITY........45 PERCENT.  
WIND (20 FT)........NORTH WINDS 12 TO 16 MPH WITH GUSTS AROUND 20 MPH.  
MIXING HEIGHT.......2600-3000 FT AGL.  
MIXING HEIGHT (M)...792-914 METERS AGL.  
TRANSPORT WINDS.....NORTH 21 TO 30 MPH.  
TRANSPORT WINDS M/S.NORTH 9 TO 13 METERS/SECOND.  
DISPERSION INDEX....55 TO 70.  
LVORI...............DECREASING TO 1.  
STABILITY CLASS.....3.  
 
TIME (CST) 9 AM 11 AM 1 PM 3 PM 5 PM  
SKY (%).........43 19 6 3 2  
WEATHER COV.....  
WEATHER TYPE....NONE NONE NONE NONE NONE  
TSTM COV........  
CHC OF PCPN (%).0 0 0 0 0  
LAL.............1 1 1 1 1  
TEMP............38 43 46 47 42  
RH..............70 55 47 45 55  
20 FT WIND DIR..N NW NW N N  
20 FT WIND SPD..14 14 14 12 10  
20 FT WIND GUST.19 20 19 17 14  
MIX HGT (FT)....2600 2800 3000 3000 3000  
MIX HGT (M).....790 850 910 910 910  
TRANSP WIND DIR.NW N N N N  
TRANSP WIND SPD.30 26 23 21 21  
TRANS WIND DIR..NW N N N N  
TRANS SPD (M/S).13 12 10 9 9  
DISPERSION IDX..67 61 56 55 60  
LVORI...........2 1 1 1 1  
   
TONIGHT
 
 
SKY/WEATHER.........CLEAR (0-5 PERCENT).  
CHANCE OF PCPN......0 PERCENT.  
LAL.................NO TSTMS.  
MIN TEMPERATURE.....AROUND 28.  
MAX HUMIDITY........75 PERCENT.  
WIND (20 FT)........NORTH WINDS 5 TO 10 MPH.  
MIXING HEIGHT.......500-1000 FT AGL.  
MIXING HEIGHT (M)...152-305 METERS AGL.  
TRANSPORT WINDS.....NORTH 13 TO 21 MPH DECREASING TO 5 TO 10 MPH  
AFTER MIDNIGHT.  
TRANSPORT WINDS M/S.NORTH 6 TO 9 METERS/SECOND DECREASING TO 2 TO 4  
METERS/SECOND AFTER MIDNIGHT.  
DISPERSION INDEX....22 DECREASING TO 9.  
LVORI...............3.  
STABILITY CLASS.....4.  
 
TIME (CST) 6 PM 8 PM 10 PM MIDNGT 2 AM 4 AM  
SKY (%).........1 0 0 1 0 0  
WEATHER COV.....  
WEATHER TYPE....NONE NONE NONE NONE NONE NONE  
TSTM COV........  
CHC OF PCPN (%).0 0 0 0 0 0  
LAL.............1 1 1 1 1 1  
TEMP............40 37 35 32 31 30  
RH..............59 67 69 75 75 72  
20 FT WIND DIR..N N N N N N  
20 FT WIND SPD..9 8 7 6 5 5  
20 FT WIND GUST.13 12 10 7 6 6  
MIX HGT (FT)....1000 800 700 500 500 500  
MIX HGT (M).....300 240 210 150 150 150  
TRANSP WIND DIR.N N N N N N  
TRANSP WIND SPD.21 21 17 13 8 6  
TRANS WIND DIR..N N N N N N  
TRANS SPD (M/S).9 9 8 6 4 3  
DISPERSION IDX..22 20 17 13 10 9  
LVORI...........2 2 3 3 3 3  
   
MARTIN LUTHER KING JR DAY
 
 
SKY/WEATHER.........SUNNY (0-5 PERCENT).  
CHANCE OF PCPN......0 PERCENT.  
LAL.................NO TSTMS.  
MAX TEMPERATURE.....AROUND 54.  
MIN HUMIDITY........31 PERCENT.  
WIND (20 FT)........EAST WINDS 5 TO 7 MPH.  
MIXING HEIGHT.......500-2400 FT AGL INCREASING TO 2800-3100 FT AGL  
IN THE AFTERNOON.  
MIXING HEIGHT (M)...152-732 METERS AGL INCREASING TO 853-945 METERS  
AGL IN THE AFTERNOON.  
TRANSPORT WINDS.....EAST 6 TO 15 MPH.  
TRANSPORT WINDS M/S.EAST 3 TO 7 METERS/SECOND.  
DISPERSION INDEX....17 INCREASING TO 37.  
LVORI...............3 DECREASING TO 1.  
STABILITY CLASS.....3.  
 
TIME (CST) 6 AM 8 AM 10 AM NOON 2 PM 4 PM  
SKY (%).........1 1 1 1 1 1  
WEATHER COV.....  
WEATHER TYPE....NONE NONE NONE NONE NONE NONE  
TSTM COV........  
CHC OF PCPN (%).0 0 0 0 0 0  
LAL.............1 1 1 1 1 1  
TEMP............28 33 43 49 54 51  
RH..............75 58 39 34 31 39  
20 FT WIND DIR..N NE NE NE E E  
20 FT WIND SPD..5 6 6 6 6 6  
20 FT WIND GUST.6 8 10 10 8 7  
MIX HGT (FT)....500 1200 2000 2800 3000 3100  
MIX HGT (M).....150 370 610 850 910 940  
TRANSP WIND DIR.N NE NE NE NE E  
TRANSP WIND SPD.6 13 15 12 8 9  
TRANS WIND DIR..N NE NE NE NE E  
TRANS SPD (M/S).3 6 7 5 4 4  
DISPERSION IDX..17 23 34 37 31 34  
LVORI...........3 2 1 1 1 1  
 

 
FORECASTER...21  
REQUESTED BY...KEITH HAWK  
TYPE OF REQUEST...PRESCRIBED  
.TAG 1900418.0/MOB  
.DELDT 01/20/19  
.EMAIL KEITH.HAWK.CTR@US.AF.MIL  
 
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